Radiation chemistry of aqueous solutions containing carbon monoxide and oxygen between pH 0.4 and 12

Abstract

G(H₂), G(CO₂), G(H₂O₂), G(—O₂) and G(—CO) have been measured for X-irradiated aqueous solutions containing CO and O₂ in the pH range 0.4–12. A reaction mechanism is used as a basis for calculation of primary yields. Whereas G_H2= 0.48±0.05 and G_H2O2= 0.74±0.09 are substantially independent of pH, G_–H2O, G_OH and (G_e^–aq+G_H) each diminish by about 0.9 unit as the pH is increased from 1.4 to 2.2, thereafter remaining constant at 3.7±0.2, 2.14±0.04 and 2.8±0.15 respectively.